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luxas / kubeadm-workshop

Showcasing a bare-metal multi-platform kubeadm setup with persistent storage and monitoring
MIT License
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kubectl top nodes heapster #22

Open jamesbuckett opened 7 years ago

jamesbuckett commented 7 years ago

Hello

Deploy Heapster with : kubectl apply -f demos/monitoring/heapster.yaml

Heapster Pod comes online : 

kube-system Pods
NAME                                   READY     STATUS             RESTARTS   AGE       IP              NODE
etcd-k8s-master                        1/1       Running            0          38m       192.168.0.160   k8s-master
heapster-3303827012-zd6c0              1/1       Running            0          16m       <none>          k8s-node-2
kube-apiserver-k8s-master              1/1       Running            4          42m       192.168.0.160   k8s-master
kube-controller-manager-k8s-master     1/1       Running            1          39m       192.168.0.160   k8s-master
kube-dns-2459497834-89f2f              3/3       Running            0          39m       10.32.0.2       k8s-master
kube-proxy-5mnzw                       1/1       Running            0          31m       192.168.0.163   k8s-node-3
kube-proxy-b0vqh                       1/1       Running            0          31m       192.168.0.164   k8s-node-4
kube-proxy-krgqg                       1/1       Running            0          39m       192.168.0.160   k8s-master
kube-proxy-s5h76                       1/1       Running            0          31m       192.168.0.161   k8s-node-1
kube-proxy-z9fcn                       1/1       Running            0          31m       192.168.0.162   k8s-node-2
kube-scheduler-k8s-master              1/1       Running            0          40m       192.168.0.160   k8s-master
kubernetes-dashboard-184298627-vl956   0/1       CrashLoopBackOff   6          17m       <none>          k8s-node-3
weave-net-7xxp6                        2/2       Running            0          31m       192.168.0.162   k8s-node-2
weave-net-cxzn2                        2/2       Running            0          31m       192.168.0.164   k8s-node-4
weave-net-l0bw5                        2/2       Running            0          31m       192.168.0.161   k8s-node-1
weave-net-r1bzn                        2/2       Running            0          35m       192.168.0.160   k8s-master
weave-net-wz9v4                        2/2       Running            1          31m       192.168.0.163   k8s-node-3

kube-system Services
NAME                   CLUSTER-IP      EXTERNAL-IP   PORT(S)         AGE
heapster               10.96.242.72    <none>        80/TCP          16m
kube-dns               10.96.0.10      <none>        53/UDP,53/TCP   39m
kubernetes-dashboard   10.97.240.210   <none>        80/TCP          17m

Nodes
NAME         STATUS    AGE       VERSION   EXTERNAL-IP   OS-IMAGE                        KERNEL-VERSION
k8s-master   Ready     42m       v1.7.2    <none>        Raspbian GNU/Linux 8 (jessie)   4.4.50-hypriotos-v7+
k8s-node-1   Ready     31m       v1.7.2    <none>        Raspbian GNU/Linux 8 (jessie)   4.4.50-hypriotos-v7+
k8s-node-2   Ready     31m       v1.7.2    <none>        Raspbian GNU/Linux 8 (jessie)   4.4.50-hypriotos-v7+
k8s-node-3   Ready     31m       v1.7.2    <none>        Raspbian GNU/Linux 8 (jessie)   4.4.50-hypriotos-v7+
k8s-node-4   Ready     31m       v1.7.2    <none>        Raspbian GNU/Linux 8 (jessie)   4.4.50-hypriotos-v7+

kubectl top nodes gives : 

Error from server (InternalError): an error on the server ("unknown") has prevented the request from succeeding (get services http:heapster:)

docker logs 66f3b69cb985 on the node gives : 

E0729 11:16:36.622691       7 reflector.go:190] k8s.io/heapster/metrics/util/util.go:51: Failed to list *v1.Node: Get https://kubernetes.default/api/v1/nodes?resourceVersion=0: dial tcp: lookup kubernetes.default on 10.96.0.10:53: dial udp 10.96.0.10:53: connect: network is unreachable

Appreciate any help to resolve this.

gauti038 commented 6 years ago

facing the same issue.